Pedalling for good health is the message behind this year's Shellharbour Bike About.

The 13th annual event will be held as part of NSW Bike Week in September.

"The Bike About day is a fun, family day that increases awareness of safe cycling issues and educates locals of the extensive path system across our city," Shellharbour Mayor Marianne Saliba said.

"It is important that all users of this system understand the safety protocols that they need to observe to make sure everyone can enjoy these paths."

To be held on the Lake Illawarra foreshore, the event is a joint initiative between the council, the Heart Foundation, Lake Illawarra PCYC, Illawarra BUG, Illawarra Road Safety Group and Roads and Maritime Services.

There are three courses, including the eight-kilometre short course suitable for young families and people who haven't ridden in some time and the 10-kilometre course for energetic cyclists.

The more enthusiastic cyclists can complete both courses for a total ride of 18 kilometres.

The event will begin at 9am on Sunday, September 14, with the ride starting and finishing at Reddall Parade, Lake Illawarra.

Parking is available in the grounds of Cec Glenholmes Oval.

Registration forms are available from the council's administration centre, libraries and on the website, www.shellharbour.nsw.gov.au, as well as on the day at the start point.

The day will end in festival style between 10am and 1pm at the Lake Illawarra PCYC with a barbecue, giveaways and raffles, stalls, live music and more.